<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    body {
      margin: auto;
    }

    #app {
      perspective: 500px;
      perspective-origin: 50% 50%;
      background-color: #f2f2f2;
    }

    #cell {
      width: 100px;
      height: 100px;
      background-color: #000;
      transform: translate3d(1px, -1px, 200px) rotateY(70deg);
    }
  </style>
</head>

<body>
  <div id="app">
    <div id="cell">
      <!-- TODO 看不懂 -->
    </div>
  </div>
</body>

</html>